Skyrmions in disordered heterostructures
A. J. Nederveen, Yuli V. Nazarov
Abstract
We have investigated the effect of weak disorder on the ground state of a two dimensional electron gas in the quantum Hall regime at filling factors slightly deviating from unity. The skyrmions and antiskyrmions are found to be present even at filling factor ν=1. They may be strongly squeezed by the disorder. We have studied temperature effect on skyrmion density and size.
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